成果归属作者：

夏志国

成果归属机构：

材料科学与工程学院

作者：

Xia, Zhiguo ; Liu, Ru-Shi ; Huang, Kuan-Wei ; Drozd, Vadym

单位：

China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China;Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan;Florida Int Univ, Ctr Study Matter Extreme Condit, Miami, FL 33199 USA

摘要：

A novel green-emitting phosphor Ca2Al3O6F:Eu2+ was synthesized and its photoluminescence (PL) properties were investigated for application in white light-emitting diodes (w-LEDs). This phosphor shows good absorption ranging from the ultraviolet to the blue region and a broad green emission band centered at 502 nm. The concentration quenching mechanism and fluorescence lifetime of Eu2+ emission in the Ca2Al3O6F:Eu2+ phosphors have been investigated. The key parameters for the fabrication of w-LED lamps, such as the temperature-dependent photoluminescence, microstructure and morphology, CIE value and quantum efficiency of Ca2Al3O6F:Eu2+ phosphors, have also been studied. The above results indicate that Ca2Al3O6F:Eu2+ is a good candidate as a green component for near UV-excited w-LEDs.

基金：

National Natural Science Foundations of China [51002146, 41172053]; Ph.D. Programs Foundation of Ministry of Education of China [20090022120002]; Fundamental Research Funds for the Central Universities [2010ZY35, 2011YYL131]; State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences [RERU2011014]; National Science Council of Taiwan [NSC 97-2113-M-002-012-MY3, NSC 97-3114-M-002-005]

语种：

英文

DOI：

10.1039/c2jm32733c

来源：

JOURNAL OF MATERIALS CHEMISTRY,2012(30):15183-15189.

出版日期：

2012

提交日期：

2017-12-14

引用参考：

Xia, Zhiguo; Liu, Ru-Shi; Huang, Kuan-Wei; Drozd, Vadym. Ca2Al3O6F:Eu2+: a green-emitting oxyfluoride phosphor for white light-emitting diodes[J]. JOURNAL OF MATERIALS CHEMISTRY,2012(30):15183-15189.